Evolution showing One Unread email but cannot find any email, where is it?

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http://askubuntu.com – This sync -bug may be related to this lag -bug here. Basically Inbox shows +1 email but cannot find it, I have deselected I think all options such as search not to filter out emails. You can see my progress with the questions below. What could be reason for this malfunctioning? Perhaps related http://android.stackexchange.com/questions/29065/email-client-with-sent-... Email-client such as Evolution with Sent-emails -folder? Precise: Evolution laggy due to IMAP -profile or due to some odd Sync -issue? (HowTos)